Updated: Kenyan Foreign Minister Amina Mohamed tells PBS NewsHour that “two or three” Americans and a female Briton participated in the militant attack in Nairobi.
The FBI is investigating claims that five or six Americans were among the terrorists who attacked shoppers at a Nairobi mall, NBC News reports. Continue reading →

War isn’t funny. Robert H. Kelly, Union soldier, photographed by Purviance at Fifth and Wood streets in Pittsburgh. | Library of Congress

Bad teeth? It took too long to take the picture?

Turns out showing your teeth when you smiled used to be frowned upon.

“There are some people who raise their upper lip so high… that their teeth are almost entirely visible. This is entirely contradictory to decorum, which forbids you to allow your teeth to be uncovered, since nature gave us lips to conceal them,” St. Jean-Baptiste De La Salle wrote in The Rules of Christian Decorum and Civility of 1703. Continue reading →

A newly declassified document confirms that the U.S. Air Force “inadvertently dropped” atom bombs over Goldsboro, N.C., in 1961 when a B-52 broke apart in midair, The Guardian reports in an exclusive. Continue reading →